Rules of Thumb and Retirement Accounts
By Vanya Horneff, David A. Love & Raimond Maurer We examine the welfare costs of applying common rules of thumb for saving, investment, 401k contributions, and withdrawals in an environment that includes a realistic treatment of taxation, Social Security benefits, 401k-plan details, and uncertainty in income, longevity, and asset returns. We test the performance of commonly recommended rules, such as investing 100-minus-age percent of assets in stocks, contributing 6–10% of income to a 401k account, or withdrawing the required minimum...
